NSR Query Results
Output year order : Descending NSR database version of April 27, 2024. Search: Author = J.Bergmann Found 14 matches. 2023JA05 Nucl.Phys. A1033, 122636 (2023) A.Jacobs, C.Andreoiu, J.Bergmann, T.Brunner, T.Dickel, I.Dillmann, E.Dunling, J.Flowerdew, L.Graham, G.Gwinner, Z.Hockenbery, W.J.Huang, B.Kootte, Y.Lan, K.G.Leach, E.Leistenschneider, D.Lunney, E.M.Lykiardopoulou, V.Monier, I.Mukul, S.F.Paul, W.R.Plass, M.P.Reiter, C.Scheidenberger, R.Thompson, J.L.Tracy, C.Will, M.E.Wieser, J.Dilling, A.A.Kwiatkowski Improved high-precision mass measurements of mid-shell neon isotopes ATOMIC MASSES 24,25,26Ne; measured radioactive ion beam (RIB) TOF spectra; deduced mass excess. Comparison with AME2020. TRIUMF's Ion Trap for Atomic and Nuclear science (TITAN), the Multi-Reflection Time-of-Flight Mass-Spectrometer (MR-TOF-MS).
doi: 10.1016/j.nuclphysa.2023.122636
2023MO07 Phys.Lett. B 839, 137833 (2023) A.Mollaebrahimi, C.Hornung, T.Dickel, D.Amanbayev, G.Kripko-Koncz, W.R.Plass, S.Ayet S.Andres, S.Beck, A.Blazhev, J.Bergmann, H.Geissel, M.Gorska, H.Grawe, F.Greiner, E.Haettner, N.Kalantar-Nayestanaki, I.Miskun, F.Nowacki, C.Scheidenberger, S.Bagchi, D.L.Balabanski, Z.Brencic, O.Charviakova, P.Constantin, M.Dehghan, J.Ebert, L.Grof, O.Hall, M.N.Harakeh, S.Kaur, A.Kankainen, R.Knobel, D.A.Kostyleva, N.Kurkova, N.Kuzminchuk, I.Mardor, D.Nichita, J.-H.Otto, Z.Patyk, S.Pietri, S.Purushothaman, M.P.Reiter, A.-K.Rink, H.Roesch, A.Spataru, G.Stanic, A.State, Y.K.Tanaka, M.Vencelj, H.Weick, J.S.Winfield, M.I.Yavor, J.Zhao Studying Gamow-Teller transitions and the assignment of isomeric and ground states at N = 50 NUCLEAR REACTIONS Be(124Xe, X), E=800 MeV/nucleon; measured reaction products, ToF. 94Ru, 94Rh, 94mRh, 96,97,97mRu, 97Pd, 97,97mAg, 98Pd, 98Cd, 99Ag, 100Pd, 100Ag, 100Cd, 101In; deduced mass excess and Q-values. Comparison with AME2020 evaluation. The FRS Ion Catcher (FRS-IC) at GSI, Germany.
doi: 10.1016/j.physletb.2023.137833
2022PO02 Phys.Rev. C 105, L041301 (2022) W.S.Porter, B.Ashrafkhani, J.Bergmann, C.Brown, T.Brunner, J.D.Cardona, D.Curien, I.Dedes, T.Dickel, J.Dudek, E.Dunling, G.Gwinner, Z.Hockenbery, J.D.Holt, C.Hornung, C.Izzo, A.Jacobs, A.Javaji, B.Kootte, G.Kripko-Koncz, E.M.Lykiardopoulou, T.Miyagi, I.Mukul, T.Murbock, W.R.Plass, M.P.Reiter, J.Ringuette, C.Scheidenberger, R.Silwal, C.Walls, H.L.Wang, Y.Wang, J.Yang, J.Dilling, A.A.Kwiatkowski Mapping the N=40 island of inversion: Precision mass measurements of neutron-rich Fe isotopes ATOMIC MASSES 63,64,65,65m,66,67,68,69,69m,70Fe; measured time-of-flight; deduced mass excess, S(2n), pairing gap. Systematics of S(2n) values for Z=24–28 isotope chains. Compared to mean-field calculations employing recent Woods-Saxon Hamiltonian and results from the multishell valence-space in-medium similarity renormalization group (VS-IMSRG). Comparison to recommended values from AME2020. TITAN (TRIUMF’s Ion Trap for Atomic and Nuclear science) Multiple-Reflection Time-of- Flight Mass Spectrometer.
doi: 10.1103/PhysRevC.105.L041301
2022PO06 Phys.Rev. C 106, 024312 (2022) W.S.Porter, E.Dunling, E.Leistenschneider, J.Bergmann, G.Bollen, T.Dickel, K.A.Dietrich, A.Hamaker, Z.Hockenbery, C.Izzo, A.Jacobs, A.Javaji, B.Kootte, Y.Lan, I.Miskun, I.Mukul, T.Murbock, S.F.Paul, W.R.Plass, D.Puentes, M.Redshaw, M.P.Reiter, R.Ringle, J.Ringuette, R.Sandler, C.Scheidenberger, R.Silwal, R.Simpson, C.S.Sumithrarachchi, A.Teigelhofer, A.A.Valverde, R.Weil, I.T.Yandow, J.Dilling, A.A.Kwiatkowski Investigating nuclear structure near N=32 and N=34: Precision mass measurements of neutron-rich Ca, Ti, and V isotopes ATOMIC MASSES 54Ca, 52,54,55,56Ti, 54,55,56,57,58V; measured time-of-flight ion-cyclotron-resonances (ToF-ICR) using TRIUMF-TITAN multiple-reflection time-of-flight mass spectrometer (MR-ToF-MS) and the NSCL(MSU)-LEBIT Penning trap mass spectrometer; deduced mass excesses. Comparison with evaluated data in AME2020, and with valence-space in-medium similarity renormalization group (VS-IMSRG) calculations. Systematics of S(2n) values in 46,47,48,49,50,51K, 47,48,49,50,51,52,53,54Ca, 48,49,50,51,52,53,54,55,56,57Sc, 49,50,51,52,53,54,55,56,57Sc, 49,50,51,52,53,54,55,56Ti, 50,51,52,53,54,55,56,57,58,59V, 51,52,53,54,55,56,57,58,59,60Cr.
doi: 10.1103/PhysRevC.106.024312
2022SI20 Phys.Lett. B 833, 137288 (2022) R.Silwal, C.Andreoiu, B.Ashrafkhani, J.Bergmann, T.Brunner, J.Cardona, K.Dietrich, E.Dunling, G.Gwinner, Z.Hockenbery, J.D.Holt, C.Izzo, A.Jacobs, A.Javaji, B.Kootte, Y.Lan, D.Lunney, E.M.Lykiardopoulou, T.Miyagi, M.Mougeot, I.Mukul, T.Murbock, W.S.Porter, M.Reiter, J.Ringuette, J.Dilling, A.A.Kwiatkowski Summit of the N=40 island of inversion: Precision mass measurements and ab initio calculations of neutron-rich chromium isotopes ATOMIC MASSES 59Cr, 61,62,63,64,65Cr; measured frequencies, TOF; deduced mass excess values, pairing gap, two-neutron separation energies, intruder configurations. Comparison with theoretical calculations, AME2020 evaluation. MR-TOF-MS, part of the TRIUMF's Ion Trap for Atomic and Nuclear Science (TITAN) facility.
doi: 10.1016/j.physletb.2022.137288
2022SP03 Nucl.Instrum.Methods Phys.Res. B522, 32 (2022) A.Spataru, C.Hornung, T.Dickel, E.Haettner, S.Pietri, S.Ayet San Andres, S.Bagchi, D.L.Balabanski, J.Bergmann, J.Ebert, A.Finley, H.Geissel, F.Greiner, O.Hall, S.Kaur, W.Lippert, I.Miskun, J.-H.Otto, W.R.Plass, A.Prochazka, S.Purushothaman, C.Rappold, A.-K.Rink, C.Scheidenberger, Y.K.Tanaka, H.Toernqvist, H.Weick, J.S.Winfield First coupling of the FRS particle identification and the FRS-Ion Catcher data acquisition systems: The case of 109In NUCLEAR REACTIONS 9Be(124Xe, X)109In, E=600 MeV/nucleon; measured reaction products; deduced mass-to-charge spectrum of ground state and two isomeric states. The FRagment Separator (FRS) and the Multiple-Reflection Time-Of-Flight Mass-Spectrometer (MR-TOF-MS) particle identification (PID) systems at GSI.
doi: 10.1016/j.nimb.2022.04.003
2021BE23 Phys.Rev.Lett. 127, 112501 (2021) S.Beck, B.Kootte, I.Dedes, T.Dickel, A.A.Kwiatkowski, E.M.Lykiardopoulou, W.R.Plass, M.P.Reiter, C.Andreoiu, J.Bergmann, T.Brunner, D.Curien, J.Dilling, J.Dudek, E.Dunling, J.Flowerdew, A.Gaamouci, L.Graham, G.Gwinner, A.Jacobs, R.Klawitter, Y.Lan, E.Leistenschneider, N.Minkov, V.Monier, I.Mukul, S.F.Paul, C.Scheidenberger, R.I.Thompson, J.L.Tracy, Jr., M.Vansteenkiste, H.-L.Wang, M.E.Wieser, C.Will, J.Yang Mass Measurements of Neutron-Deficient Yb Isotopes and Nuclear Structure at the Extreme Proton-Rich Side of the N=82 Shell ATOMIC MASSES 150,151,152,153,154,155,156Yb; measured frequencies, TOF; deduced mass excess values. Comparison with systematics, AME2020 evaluation. TITAN's multiple-reflection time-of-flight mass spectrometer (MR-TOF-MS). RADIOACTIVITY 151Yb(IT); measured decay products; deduced excitation energy.
doi: 10.1103/PhysRevLett.127.112501
2021IZ01 Phys.Rev. C 103, 025811 (2021) C.Izzo, J.Bergmann, K.A.Dietrich, E.Dunling, D.Fusco, A.Jacobs, B.Kootte, G.Kripko-Koncz, Y.Lan, E.Leistenschneider, E.M.Lykiardopoulou, I.Mukul, S.F.Paul, M.P.Reiter, J.L.Tracy, C.Andreoiu, T.Brunner, T.Dickel, J.Dilling, I.Dillmann, G.Gwinner, D.Lascar, K.G.Leach, W.R.Plass, C.Scheidenberger, M.E.Wieser, A.A.Kwiatkowski Mass measurements of neutron-rich indium isotopes for r-process studies ATOMIC MASSES 125,126,127,127m,128,128m,129,129m,130,130m,131,131m,132,133,133m,134In; measured time-of-flight spectra using TITAN multiple-reflection time-of-flight mass spectrometer (MR-TOF-MS) at ISAC-TRIUMF facility; deduced mass excesses. 127m,128m,129m,130m,131m,133mIn; deduced excitation energies of two isomeric states each in 127In, 128In, 129In, and 131In, and one isomeric state each in 130In and 132In. Comparison with recent measurements, evaluated data in AME-2016 and ENSDF database, and with predictions from theoretical mass models: FRDM2012, HFB-24, WS4, KTUY05, and DZ95. Radioactive indium beams produced in UCx(p, X), E=480 MeV reaction, followed by selective ionization using an ion-guide laser ion source (IG-LIS), and mass separated by ISAC mass separator, and finally sent to MR-TOF-MS system consisting of a helium-filled rf transport system and injection trap, an electrostatic time-of-flight mass analyzer, and a MagneTOF detector. 128,128mIn, 128,128mSn, 128Sb, 128Cs, 128I, 128Te, 128Xe; measured mass spectrum for A=128 nuclei. Systematics of energies of 1/2- isomers in 101,103,105,107,109,111,113,115,117,119,121,123,125,127,129,131,133In. Relevance to future r-process calculations, including the effect of isomers.
doi: 10.1103/PhysRevC.103.025811
2021MA22 Phys.Rev. C 103, 034319 (2021) I.Mardor, S.A.Andres, T.Dickel, D.Amanbayev, S.Beck, J.Bergmann, H.Geissel, L.Grof, E.Haettner, C.Hornung, N.Kalantar-Nayestanaki, G.Kripko-Koncz, I.Miskun, A.Mollaebrahimi, W.R.Plass, C.Scheidenberger, H.Weick, S.Bagchi, D.L.Balabanski, A.A.Bezbakh, Z.Brencic, O.Charviakova, V.Chudoba, P.Constantin, M.Dehghan, A.S.Fomichev, L.V.Grigorenko, O.Hall, M.N.Harakeh, J.-P.Hucka, A.Kankainen, O.Kiselev, R.Knobel, D.A.Kostyleva, S.A.Krupko, N.Kurkova, N.Kuzminchuk, I.Mukha, I.A.Muzalevskii, D.Nichita, C.Nociforo, Z.Patyk, M.Pfutzner, S.Pietri, S.Purushothaman, M.P.Reiter, H.Roesch, F.Schirru, P.G.Sharov, A.Spataru, G.Stanic, A.State, Y.K.Tanaka, M.Vencelj, M.I.Yavor, J.Zhao Mass measurements of As, Se, and Br nuclei, and their implication on the proton-neutron interaction strength toward the N=Z line ATOMIC MASSES 69As, 70,71Se, 71Br; measured mass-to-charge ratio spectra using the multiple-reflection time-of-flight mass spectrometer (MR-TOF-MS) at the Fragment Separator (FRS) at GSI; deduced mass excesses and compared to evaluated data in AME-2016, and proton-neutron interaction (δVpn) for odd-odd nuclei along the N=Z line above Z=29. Isotopes produced via fragmentation in 9Be(124Xe, X), E=982 MeV/nucleon, followed by separation of fragments using FRS separator at GSI.
doi: 10.1103/PhysRevC.103.034319
2021MU05 Phys.Rev. C 103, 044320 (2021) I.Mukul, C.Andreoiu, J.Bergmann, M.Brodeur, T.Brunner, K.A.Dietrich, T.Dickel, I.Dillmann, E.Dunling, D.Fusco, G.Gwinner, C.Izzo, A.Jacobs, B.Kootte, Y.Lan, E.Leistenschneider, E.M.Lykiardopoulou, S.F.Paul, M.P.Reiter, J.L.Tracy, J.Dilling, A.A.Kwiatkowski Examining the nuclear mass surface of Rb and Sr isotopes in the A ≈ 104 region via precision mass measurements ATOMIC MASSES 99,100,101,102,103Rb, 99,100,101,102,103,104,105Sr; measured time-of-flight spectra using Multiple-Reflection Time-of-Flight Mass Separator (MR-TOF-MS) at the TITAN-TRIUMF facility; deduced mass excesses, S(2n), S(n), neutron pairing gaps, fractional r-process abundance for Rb and Sr isotopes relative to most abundant isotopes using waiting point approximation. Comparison with previous experimental values, and with AME2016 evaluation. Discussed astrophysical implications for the r-process. Beams of rubidium and strontium isotopes produced in U(p, X), E=480 MeV reaction at the ISAC-TRIUMF facility, followed by ionization using TRIUMF's Resonant Laser Ionization Ion Source (TRILIS) and mass separated using a dipole magnet.
doi: 10.1103/PhysRevC.103.044320
2021PA44 Phys.Rev. C 104, 065803 (2021) S.F.Paul, J.Bergmann, J.D.Cardona, K.A.Dietrich, E.Dunling, Z.Hockenbery, C.Hornung, C.Izzo, A.Jacobs, A.Javaji, B.Kootte, Y.Lan, E.Leistenschneider, E.M.Lykiardopoulou, I.Mukul, T.Murbock, W.S.Porter, R.Silwal, M.B.Smith, J.Ringuette, T.Brunner, T.Dickel, I.Dillmann, G.Gwinner, M.MacCormick, M.P.Reiter, H.Schatz, N.A.Smirnova, J.Dilling, A.A.Kwiatkowski Mass measurements of 60-63Ga reduce x-ray burst model uncertainties and extend the evaluated T=1 isobaric multiplet mass equation ATOMIC MASSES 60,61,62,63Ga; measured mass spectra using the TITAN multiple-reflection time-of-flight (MR-TOF) mass spectrometer at TRIUMF-ISAC facility; deduced mass excesses and S(p), and compared with previous experimental results and AME2020 evaluation, and theoretical calculations for S(p). Discussed isobaric multiplet mass equation (IMME) for A=60, and systematic trend for A=42-62 even-A nuclei. Relevance of 60,61Ga mass measurements for the rp process in x-ray bursts, and for 60Zn waiting point nucleus. 60,61,62,63Ga isotopes produced in Zr(p, X), E=480 MeV, and selectively ionized by TRIUMF's Resonant Laser Ion Source (TRILIS).
doi: 10.1103/PhysRevC.104.065803
2020HO03 Phys.Lett. B 802, 135200 (2020) C.Hornung, D.Amanbayev, I.Dedes, G.Kripko-Koncz, I.Miskun, N.Shimizu, S.Ayet S.Andres, J.Bergmann, T.Dickel, J.Dudek, J.Ebert, H.Geissel, M.Gorska, H.Grawe, F.Greiner, E.Haettner, T.Otsuka, W.R.Plass, S.Purushothaman, A.-Ka.Rink, C.Scheidenberger, H.Weick, S.Bagchi, A.Blazhev, O.Charviakova, D.Curien, A.Finlay, S.Kaur, W.Lippert, J.-H.Otto, Z.Patyk, S.Pietri, Y.K.Tanaka, Y.Tsunoda, J.S.Winfield Isomer studies in the vicinity of the doubly-magic nucleus 100Sn: Observation of a new low-lying isomeric state in 97Ag RADIOACTIVITY 97Ag, 101,103,105,107,109In(IT) [from 9Be(124Xe, X), E=600 MeV/nucleon]; measured decay products, mass-to-charge spectra; deduced mass excess, excitation energies. Comparison with shell model calculations.
doi: 10.1016/j.physletb.2020.135200
2019AN10 Phys.Rev. C 99, 064313 (2019), Erratum Phys.Rev. C 107, 029901 (2023) S.A.S.Andres, C.Hornung, J.Ebert, W.R.Plass, T.Dickel, H.Geissel, C.Scheidenberger, J.Bergmann, F.Greiner, E.Haettner, C.Jesch, W.Lippert, I.Mardor, I.Miskun, Z.Patyk, S.Pietri, A.Pihktelev, S.Purushothaman, M.P.Reiter, A.-K.Rink, H.Weick, M.I.Yavor, S.Bagchi, V.Charviakova, P.Constantin, M.Diwisch, A.Finlay, S.Kaur, R.Knobel, J.Lang, B.Mei, I.D.Moore, J.-H.Otto, I.Pohjalainen, A.Prochazka, C.Rappold, M.Takechi, Y.K.Tanaka, J.S.Winfield, X.Xu High-resolution, accurate multiple-reflection time-of-flight mass spectrometry for short-lived, exotic nuclei of a few events in their ground and low-lying isomeric states ATOMIC MASSES 93,94Ru, 94Rh, 96,97Pd, 100Ag, 107Cd, 114,116,133,134Te, 114,134Sb, 117,119,133,134I, 119Xe, 124,125,126Cs, 211,212,213Fr, 211Po, 212,213,218,220Rn, 212,217At; 134mSb, 133mTe, 133m,134mI, 134mXe, 211mPo; measured mass excess and isomer energies using multiple-reflection time-of-flight mass spectrometry (MR-TOF-MS) with the FRS Ion Catcher at GSI. Isotopes produced in 9Be(238U, F), E=300, 1000 MeV/nucleon; 9Be(124Xe, X), E=600 MeV/nucleon reactions using FRS separator at GSI. Comparison with AME-2016 evaluation. Systematics of S(2n) values in N=123-136 Pb, Bi, Po, At, Rn, Fr, Ra, Ac, Th isotopes, and compared with theoretical predictions.
doi: 10.1103/PhysRevC.99.064313
2018LE03 Phys.Rev.Lett. 120, 062503 (2018) E.Leistenschneider, M.P.Reiter, S.Ayet San Andres, B.Kootte, J.D.Holt, P.Navratil, C.Babcock, C.Barbieri, B.R.Barquest, J.Bergmann, J.Bollig, T.Brunner, E.Dunling, A.Finlay, H.Geissel, L.Graham, F.Greiner, H.Hergert, C.Hornung, C.Jesch, R.Klawitter, Y.Lan, D.Lascar, K.G.Leach, W.Lippert, J.E.McKay, S.F.Paul, A.Schwenk, D.Short, J.Simonis, V.Soma, R.Steinbrugge, S.R.Stroberg, R.Thompson, M.E.Wieser, C.Will, M.Yavor, C.Andreoiu, T.Dickel, I.Dillmann, G.Gwinner, W.R.Plass, C.Scheidenberger, A.A.Kwiatkowski, J.Dilling Dawning of the N=32 Shell Closure Seen through Precision Mass Measurements of Neutron-Rich Titanium Isotopes ATOMIC MASSES 51V, 51,52,53,54,55Ti, 52,53,54,55Cr; measured radio frequencies, TOF; deduced mass excesses. Comparison with the AME16 recommended values.
doi: 10.1103/PhysRevLett.120.062503
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